Method of assembling continuousform stationery



L. JENSEN Jan. 13, 1953 2 SHEETS-SHEET 1 Filed 412M922 $01 01745 Jensen wzatorzz eys Jan. 13, 1953 JENSEN 2,625,391

METHOD OF ASSEMBLING CONTINUOUS FORM STATIONERY Filed March 51, 1950 2 SHEETS-SHEET 2 FIE- 5 FIE- 4 loads Jen sea Q2226 arzz eye Patented Jan.

IVIETHOD OF ASSEMBLING CONTINUOUS-,

FORM STATIONERY Louis Jensen, Chicago, 111., assignor to Uarco Incorporated, a corporation of Illinois Application March 31, 1950, Serial No. 153,221

This invention relates to an improved method of assembling continuous-form stationery with one-time carbon, and more particularly to a number of steps performed 'in'timed relation to assemble the parts and form them into a continuous zig-zag folded pack.

Heretoiore, stationery of this type was made up by a number of separate operations, and when the parts were brought together considerable hand work was involved. By the present invention, an automatic method is provided which is faster and eliminates more than half of the labor.

Continuous-form stationery usually is printed on cylinder presses and it is convenient to punch marginal feed holes and cross'lines of weakening between the forms on the printing press. Carbon paper usually is run directly from the coating machine into a roll. Heretofore, the carbon paper was perforated and provided with feed holes, rerolled, and then taken to a collating machine where it was interleaved with the stationery strips. By means of the present invention, the carbon strips are put under a slight tension, are punched marginally, then provided with cross lines of weakening, and then brought into interleaved aligned relation with the stationery strips by means of feed wheels and folded into packs.

The invention is illustrated diagrammatically in the accompanying drawings, in which Figure 1 is a plan view showing how the stationery strips and one-time carbon strips are brought into aligned relationship in the machine; Fig. 2, a longitudinal elevational view of the machine; Fig. 3, an elevational view of the stationery feeding portion of the machine; Fig. 4, a fragmentary diagrammatic view of the drive means for operating the parts in timed relation; and Fig. 5, a perspective view of a folded strip of stationery.

The steps of the present invention are performed, as indicated in Fig. 1, by advancing the one-time carbon strips 6 in one direction and bringing in the stationery strips 1 at an angle from one side, and turning the strips so as to travel in the same direction as the carbon strips. The assembled interleaved strips are then folded automatically to form a flat pack 8.

As shown in Fig. 2, a number of carbon rolls 9 are provided at one end of the machine, and the strips 6 are drawn out by means of powerdriven feed rolls Ill. The one-time carbon is then drawn through a punching machine II which punches the marginal feed holes in the 5 Claims. (01. 270-39) 2 v carbon strips. The carbon then advances, assisted by feed rolls I2 to a cross perforating roll [3 which makes a line of weakening across the carbon strips between each form length. The carbon strips are drawn through the angle bar interleaver by means of feed rolls M which keep the carbon paper under a slight tension, but not enough to cause separation at the lines of weakening. The strips 6 are then drawn up to the folding machine by means of rolls [5 provided with feed pins Hi. The stationery then moves into the folding machine I! which presses alternate lines of weakening in opposite directions to form the zig-zag pack which, assisted by the pressure flappers [8, forms into a pack on the belt conveyors l9 and 20, and is fed out of the machine. a a

In the diagrammatic view of Fig. 2, only two carbon strips are used, but a number of additional strips may be used in the same way. However, it has been found that not more than two strips should be fed through a pair of feed rolls l2, so that each strip will be engaged by a roller. If more than four one-time carbon strips are needed, additional sets of feed rolls l2 may be provided; The rolls M are driven at a slightly faster-peripheral speed than the rolls l2 to maintain a light tension. Idler rollers press the strips lightly against the rolls.

In Fig. 3 is shown diagrammatically how rolls of punched and cross weakened continuousform stationery strips 1 may be led from rolls 2|. The strips are led under a tensioning roll 22 and over a feeding belt 23 provided with pins 24. The feeding device is driven in timed relation to the units operating on the carbon strips. It is desirable to have the machine set up so that an operator can cross the stationery strips 1 rather than by walking around the end of the stationery side of the machine. Accordingly, a bridge 24 i provided, and the strips 1 are guided underneath the bridge on guide rollers 25 up to rollers 26. They are then led across the path of the carbon strip, are reversed, as indicated at 21, and then are turned about angle bars, as indicated at 28, so as to travel forwardly, interleaved by the carbon strips 6. Separate tensioning rolls 29 are provided which are similar to the rolls M for the carbon strips. There will be a slight drape in both the carbon strips 6 and the stationary strips 1 between the feed rolls !4 and 29 and the pin feed rolls l5.

As shown in Fig. 4, all of the units are driven in timed relation from a main drive shaft 30, on which bevel gears may be provided to drive the 3 feed rolls H] for the carbon strips, the punching machine I l, the cross perforating device l3 and the feed rolls 12. The same shaft also drive the feed rolls 29 and i4, and also the feed rolls 15. The folding mechanism l1 and the conveyors I9 and are also driven from the shaft 30, so that allof the parts operate in timed relation. As shown in Figs. 3and 4, a chain 3! drives a shaft 32 below the bridge 24, and a chain 33 drives a shaft 34, which in turn drives the feed; 7

ing device 23 by means of a chain 35, Thus the stationery also is advanced intimed relation'tq the carbon strips.

In operation the strips of carbon are drawn from the rolls 9 and brought into superposed re"- lation, so that they may be punched simulta neously as they advance through the unit l'l'. The strips are then drawn in pairs by feed rolls l2, and are maintained under a light tension by the rollers 14 as they pass through the cross punching device '13 which provides aline of weakening ineachform length in a definite relation to the marginal perforations. The pre-punched stationery isadvanced in timed relation by the feeding device Z3 an d is drawn under the bridge, across the path of the carbon strips, and is turned so as to travel in the same direction as the carbon strips. The stationery is then drawn into juxtaposition and fed into the folding device which provides zi zag folds to ior n'a flat pacl; 8.

The, for detai ed desc t q s i en er cleamess Qf u e standin o l en minc essary limitations shouldbe understood theree rom. or som m difi a ions w l be q qu to tho s led. n t e e I claim:

1. The method of assembling continuous-form stationery" with one-time. carbon: advancing strips of carbon from a source of supply into superposed relation; punching regularly spa ed feed-holes in a margin of said superposed carbon strips; forming'at each form length cross lines of weakening in the-superposed carbon strips, at regularly spaced intervals-with relation to said feed-hole; separating "said advancing carbon strips into paths'coincident with the paths of stationery strips; advancing into interleaved relation with the carbon strips, stationery strips having marginal perforations and cross lines of weakening in each form length corresponding to the perforations and cross lines of weakenin in the carbon strips, the advance of said stationery strips being in timed relation to the advance of said carbon strips; bringing said stationery strips and carbon strips into aligned juxtaposition by means of the feed-holes; and zig-zag folding said as em led t i 2; The method as specified in claim 1, in which the carbon strips and the stationery strips are advanced to. interleaved relation in the same directionirom different directions relative to each 9th?!- 3;The method as specified in claim 1, in which the stationery strips are advanced to interleaved relation with the carbon strips from a direction formin an an lewit t e d ec of d anc of the carbon strips, and are'then' turned to ad-v Vance n the. Sam di ec on a the Carbon trips The me hod as. pec e in Claim 1, in whi h he as embled e r ss are Zi za fblded m relation to their advance. Y J 5. The method as specified in claim 1, in which e atbq shi s are iiei l under we: stantially uniiorn light tension while traveling r u h th un h n d'q r t n one ""& y v, v

' L U N EN R F EN E CITED.

The follow n r ren es as o reeqrd. in h file. of this patent:

time? se ms ?A.'1?ENTS 

